PETZL Bongo Piton Hammer PRACTICAL: Rubber grip reduces vibrations. MANY USES: Hole in shaft for attaching a keeper cord. REMOVE WITH EASE: Hole in head for attaching a piton removal device. Curved head to facilitate piton removal. WEIGHT: The BONGO weighs 680 grams. ACTIVITIES: Can be used while adventure climbing, aid climbing, or for equipping new routes.